yes why?

Approved

python new test framework is required. updated in this fork

why?

it is not a good practice adding regex to your code :D

8kuy or 7kuy kata with rounding is annoying.

Ruby 3.0 should be enabled, see this to learn how to do it

Please organize the structure of test fixture as following (although it has been mentioned in the attached link, I'm repeated here again)

describe "<This message should describe the categories of test groups inside this block>" do
  it "<A short message describing this test group>" do
    expect(...).to eq(...) #Assertions
    #Or Test.assert_equals(user_response, reference_response)
  end
end

How is that 7 kyu? I hate it when you don't know if you're wasting your time trying to beat unbeatable Kata for your current level or you just can't see obvious. Finally you give up and open solutions only to find out someone not very smart set crazy low rank for the Kata. What the hell? I don't want more honor for the task I just don't want to spend hours solving unsolavable katas.

Seems to be fixed.

My code works. All looks pretty good. Thanks.

Thanks for commenting ~ indeed there was one incorrect format specifier. Fixed. Should be good to go, please try again.

Nevermind. After your answer I decided to check my code YET ONE MORE LAST TIME and of course have found a bug. My fault.

I'll take a look